反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
CONDITIONS
反应条件
- 温度
- 0 °C
PROCEDURE
实验过程
A solution of 2,6-dimethyl phenol (20 g, 0.163 mol) in ethanol (100 mL) at room temperature was treated with dimethylamine (19 mL of a 40% solution of dimethylamine in water, 0.163 mol) followed by formaldehyde (13.5 mL of a 37% solution of formaldehyde in water, 0.163 mol). The reaction was heated to reflux for 12 h. The reaction mixture was cooled to 0° C. in an ice bath, diluted with water (100 mL) and brought to pH=5 with a 1N aqueous hydrochloric acid solution. The water layer was extracted with diethyl ether (2×150 mL). The aqueous layer was brought to pH=8 by the addition of a 1N aqueous sodium hydroxide solution, cooled to 0° C. in an ice bath and was extracted with diethyl ether (3×200 mL). The organics were washed with a saturated aqueous sodium chloride solution, dried with magnesium sulfate, filtered and concentrated under vacuum. The resulting oil was dried under high vacuum overnight to afford 4-dimethylaminomethyl-2,6-dimethyl-phenol as an off-white solid (13.42 g, 46%); EI(+)-HRMS m/z calcd for C11H17NO (M+) 179.1310, found 179.1308. Molecular Weight=179.2642; Exact Mass=179.1310
WORKUP
后处理
- temperatureThe reaction was heated
- temperatureto reflux for 12 h
- extractionThe water layer was extracted with diethyl ether (2×150 mL)
- additionThe aqueous layer was brought to pH=8 by the addition of a 1N aqueous sodium hydroxide solution
- temperaturecooled to 0° C. in an ice bath
- extractionwas extracted with diethyl ether (3×200 mL)
- washThe organics were washed with a saturated aqueous sodium chloride solution
- dry with materialdried with magnesium sulfate
- filtrationfiltered
- concentrationconcentrated under vacuum
- customThe resulting oil was dried under high vacuum overnight